.controll-bar {
  margin: 0 auto;
  width: 360px;
  height: 40px;
}

.controll-item {
  display: inline-block;
  margin-left: 2px;
  margin-right: 2px;
  width: 40px;
  height: 40px;
  border-radius: 20px;
  border: 1px solid #333;
  line-height: 40px;
  text-align: center;
  cursor: pointer;
  user-select: none;
}

.controll-item.active {
  background: #98c05c;
}

.controll-item.clear {
  background: #FF0033;
}

.controll-item.active:hover {
  box-shadow: 3px 3px 3px #eee;
}

.controll-item.forbidden:hover {
  cursor: not-allowed;
}